Which citation is correct?

Keller writes, “The journey, which I remember well was very pleasant” (Keller 11).
Keller writes, “The journey, which I remember well was very pleasant (11).”
Keller writes, “The journey, which I remember well was very pleasant” (11).
“Keller writes, The journey, which I remember well was very pleasant” (Keller 11).Which citation is correct?

Keller writes, “The journey, which I remember well was very pleasant” (Keller 11).
Keller writes, “The journey, which I remember well was very pleasant (11).”
Keller writes, “The journey, which I remember well was very pleasant” (11).
“Keller writes, The journey, which I remember well was very pleasant” (Keller 11).